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angleFinder.py
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angleFinder.py
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import cv2
import math
path = 'test.jpg'
img = cv2.imread(path)
pointsList = []
def mousePoints(event,x,y,flags,params):
if event == cv2.EVENT_LBUTTONDOWN:
size = len(pointsList)
if size != 0 and size % 3 != 0:
cv2.line(img,tuple(pointsList[round((size-1)/3)*3]),(x,y),(0,0,255),2)
cv2.circle(img,(x,y),5,(0,0,255),cv2.FILLED)
pointsList.append([x,y])
def gradient(pt1,pt2):
return (pt2[1]-pt1[1])/(pt2[0]-pt1[0])
def getAngle(pointsList):
pt1, pt2, pt3 = pointsList[-3:]
m1 = gradient(pt1,pt2)
m2 = gradient(pt1,pt3)
angR = math.atan((m2-m1)/(1+(m2*m1)))
angD = round(math.degrees(angR))
cv2.putText(img,str(angD),(pt1[0]-40,pt1[1]-20),cv2.FONT_HERSHEY_COMPLEX,
1.5,(0,0,255),2)
while True:
if len(pointsList) % 3 == 0 and len(pointsList) !=0:
getAngle(pointsList)
cv2.imshow('Image',img)
cv2.setMouseCallback('Image',mousePoints)
if cv2.waitKey(1) & 0xFF == ord('q'):
pointsList = []
img = cv2.imread(path)